Table 1.

Descriptive statistics for age, apparent mechanical properties, and bone architecture by sex.

	Females			Males
Variable	x̅	sd	range	x̅	sd	range
Age (years)	18.63	6.71	6.06–32.45	17.51	5.51	6.06–25.51
Maximum Stress (MPa)	19.03	7.61	5.76–47.59	14.63	5.39	6.25–28.41
Modulus (MPa)	813.10	419.28	203.58–2176.87	627.58	416.24	172.93–1549.35
Toughness (MPa)	0.57	0.42	0.11–2.61	0.38	0.20	0.14–1.14
BV/TV (%)	29.93	8.16	12.96–53.80	25.71	5.76	15.53–39.18
Tb.Th (µm)	90.11	17.8	48.5–142.0	86.26	15.5	58.0–115.0
Tb.N (#/mm)	3.42	0.70	2.01–5.50	2.93	0.56	2.33–4.96